Diagnostic Trouble Codes (DTCs)

Diagnostic Trouble Codes (DTCs) are standardized codes generated by a vehicle's onboard computer when it detects an issue within the vehicle’s systems. These codes help technicians identify specific problems, such as engine misfires or sensor failures, by providing a reference that pinpoints the malfunction's location and nature. DTCs facilitate efficient diagnosis and repair, ensuring the vehicle operates safely and efficiently. While commonly associated with check engine lights, DTCs are essential tools for maintaining vehicle health and troubleshooting issues accurately.